The gloss of marble is refers Artificial Marble Slabs to the ability of specular reflection of marble surface light, reflective ability is stronger, the higher the gloss, reflection ability weaker, the lower the gloss. Typically, evaluation method of stainless steel tube surface glossiness have visual method and instrument measuring method in two ways.
Visual observation, it is in a stable light source environment, the human eye directly through specific Angle to observe the surface gloss of plastics, this approach can accurately contrast samples and prototype luster difference, but for specific gloss level do not have method to assess, and the result of the determination of susceptible to the influence of light source, the viewing Angle, the viewer condition.
Instrument measurement means, through the Calacatta Nano Glass gloss meter direct measurement of the surface gloss of the marble. Gloss meter is composed of optics, it built in an incandescent light source, a condenser, and a projector or source. These devices produced by direct illuminate the incoming light beam to the sample. A sensitive photodetector reflected light and produce an electrical signal, after the signal amplification inspire an analog meter or digital display instrument to show the gloss value. Gloss meter is used to measure the former, the first random work standard gloss board with instrument calibration instrument, intelligent gloss meter many are currently on the market, can be automatically calibrated when the phone is switched on. Then after correction of gloss meter is used to measure the sample, the sample size of 300 x300 or 305 x305mm, Porcelain Marble Slabs determination of five parts, namely the center of the plate and four angles, five times the arithmetic mean as the test result of the test. If the two Numbers between more than two units, should be to sampling tests. Gloss units generally expressed in GU, and incident Angle in the brackets.
Gloss meter brands and models on the market now Granite Slab Supplier has a lot of, according to different gloss meter people shoot Angle of the light source, it can be divided into fixed Angle gloss meter (e.g., 45 °, 60 °), multi-angle gloss meter (0 °, 20 °, 45 °, 60 °) and variable Angle gloss meter (20 ° to 85 ° can be measured between). For high gloss materials (60 ° luster is higher than 70%), appropriate USES people shoot Angle of 20 ° glossmeter, for low gloss materials (60 ° luster less than 30%), appropriate USES glossmeter shoot Angle is 85 °. Need to explain here, gloss according to the different incident light Angle, measuring the numerical results also. When incidence angles increase, any surface gloss value will increase, so the determination of specular gloss, must determine the Angle of incident light. In said light oil mirror luster, must indicate the point of view.
Luster is a feature of the marble surface, mainly depends on its surface reflection ability, if the marble surface rough, or have the stains will seriously affect the gloss.
So want to let the marble luster, you need to polishing the marble, then cut in the process of production, should try to keep the surface smoothness.
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